Logging-dog or swamping-hook.



PATENTED JAN. 29, 1907.

D- W. FREEMAN. LOGGING DOG OR SWAMPING HOOK.

APPLIUATION FILED 313.24, 1906. RENEWED D50 29, 1906.

THE NORRIS PETERS co., wnsnmaroN. n. c.

DAVID W. FREEMAN, OF FISHHAWK, OREGON.

LOGGING-DOG OR SWAMPlNG-HOOK.

Specification of Letters Patent.

Patented Jan. 29, 1907.

Application filed February 24, 1906. Renewed December 29, 1906. SerialNo. 350,046-

To aZZ whom it may concern:

Be it known that I, DAVID W. FREEMAN, a citizen of the United States,and a resident of Fishhawk, county of Columbia, State of Oregon, haveinvented a new and useful Improvement in Logging-Dogs or Swamping-Hooks, of which the following is a specification, reference being had tothe accompanying drawings as constituting a part thereof.

This invention has for its object to obtain a so-called logging-dog orswampinghook which shall embody ample strength and be adapted to bereadily disengaged from-i. a, pried out ofthe log and which isespecially contrived to disengage itself from the log in. case thelatter starts to roll down an embankment. The accident referred to is offrequent occurrence and is fraught with great danger, for if the loggains any headway it will exert such a sudden and irresistible pull asto drag everything with it.

To-this end my improved logging-dog is constructed and operated ashereinafter described, and illustrated in the drawings.

In the latter, Figure 1 shows a section of a log having my improved dogfastened thereto, and the log is supposed to be drawn over the ground.The dotted outline of the dog illustrates the manner in which the sameis pried out of the log. Fig. 2 illustrates the position of the partswhile dragging my hook back over the ground. Fig. 3 is a top viewcorresponding with Fig. 1. Fig. 4 shows my logging-dog so modified as tobe serviceable for fastening to the end of a log, the dotted outlineillustrating the action of the parts when disengaging thedog'from thelog; and Fig. 5 shows a dog of the type seen in Fig. 4 with the nearside of the shank removed.

The letters designate the parts referred to.

My device may be made straight, as shown in Figs. 1, 2, and 3, orcurved, as shown in Figs. 4 and 5, its structure in this respect beingadapted to the use to whichit is to be put, as illustrated in saidfigures. In other respects the construction of my device issubstantially the same.

My device comprises a shank a, made of two members a on, having pivotedbetween them at one end 0 a bar I), made with a bill I). To the oppositeend (I is pivotally fastened a link 6, provided with a ring f, by whichmy swamp-hook is fastened to the ,hook of the hauling-cable g. The linkeis made with a shoulder h, and the free end of the bar I) is made witha shoulder '5.

Referring to the style of swamp-hook shown in Fig. 1, when the same isin use to pull a log it will be arranged as shown in Fig. 1, theshoulder i of the free end of the bar I) resting on the shoulder h ofthe link e, and the harder the pull on the hauling-cable the firmer willthe parts be retained in their position. When it is desired to pull outthe bill I) of the bar I) from the log, the link e of the shank a is inthe first place pulled up, as shown in Fig. 1, the effect of which is todisengage such link from the shouldered end of the bar I), andcontinuing now the upward pull on the link 6 the shank members arecaused to act as a crowbar, as it were, such action being shown by thedotted outline of the shank in Fig. 1. The shank a is preferably madewith a point p to take better hold while prying. After the bill b of thebar I) has been pried out the shank will be brought forward, and theparts become arranged as shown in Fig. 2. When so arranged, my devicemay be dragged over the ground without danger of catching the bill b inthe ground.

In practice of course the ring f is not attached directly to thehauling-cable, but the logs are connected to the latter by short chainor cable lengths. Should it happen that a log while being hauleddowngrade starts to run ahead too fast or rolls sidewise, the same wouldnot be the cause of any danger, for the moment the log had gainedsufficient headway to cause the chain connecting the same to thehauling-cable to pull up on the link e the shank a would pry the bill I)of the bar or dog I) out of the log, and thus release suoh log, andthereby prevent dangerous consequences. It is to be noted that the barI) is pivoted at the root of its bill I).

The construction and operation of the style of my invention shown inFigs. 4 and 5 are substantially like those above described, and thistype of my invention consists of a curved shank 1', made of two partslike the shank it, having pivoted intermediate thereof a curved dog orbar is, made with a bill 7c and having a link I. provided with a ring m.In the examples shown in Figs. 4 and 5 the shoulders n 0 of the heel ofthe bar 7c and the inner end of the link are made as straightbevel-surfaces, operating, however, the same as the shoulders of the barI) and link 6. The last two examples of my invention are adapted to havethe hook driven into the ends of the logs instead of the sides, and itis obvious that the operation of prying out the bill is just the same asin the first examples.

I claim 1. An article of the class mentioned, comprising a shank, a barmade with a bill and pivoted at the root of such bill to one end of theshank, and a link pivoted to the opposite end of the shank; the free endof the bar and the inner end of said link being respectively adapted toengage with each other, and so that one will lie on the other during thehauling of a log, but becoming disengaged the moment there is an upwardpull on the link.

2. An article of the class mentioned, comprising a shank made of twoparts, a bar made with a bill and pivoted at the root of such bill toone end of said shank, intermediate of its two parts, and a link pivotedto the opposite end of the shank; the free end of the bar and the innerend of said link being respectively adapted to engage with each otherand so that one will lie on the other during the hauling of a log, butbecoming disengaged the moment there is an upward pull on the link.

3. An article of the class mentioned, comprising a shank made of twoparts, a bar made with a bill and pivoted at the root of such bill toone end of said shank, intermediate of its two parts, and a link pivotedto the opposite end of the shank; the free end of the bar and the innerend of said link being respectively adapted to engage with each other,and so that one will lie on the other during the hauling of a log, butbecoming disengaged the moment there is an upward pull on the link, andthe prying end of the shank being made with a point as p to adapt thesame to have a better hold while prying.

DAVID W. FREEMAN.

Witnesses:

- IsAAo MoKAY,

M. E. PAGE.

